Mobile Radio Systems in Japan

This page on Mobile Radio Systems in Japan covers JTACS, PDC, NTT, NTACS, NEC and PHS .

Mobile
Radio
Standard
TYPE YEAR MULTIPLE
ACCESS
FREQUENCY
BAND
MODU-
LATION
BW
JTACS Cellular 1988 FDMA 860-925
MHz
FM 25
kHz
PDC Cellular 1993 TDMA 810-1501
MHz
pi/4
DQPSK
25
kHz
NTT Cellular 1979 FDMA 400/800
MHz
FM 25
kHz
NTACS Cellular 1993 FDMA 843-925
MHz
FM 12.5
KHz
NTT Paging 1979 FDMA 280
MHz
FSK 12.5
KHz
NEC Paging 1979 FDMA Many FSK 10
KHz
PHS Cordless 1993 TDMA 1895-1907
MHz
pi/4 DQPSK 300 KHz

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